Bagliettoa parmigerella (Zahlbr.) Vězda & Poelt

in Poelt & Vezda, Bibl. Lichenol., 16: 363, 1981. Basionym: Verrucaria parmigerella Zahlbr. - Österr. bot. Z., 68: 64, 1919.
Synonyms: Protobagliettoa bagliettoaeformis (Hazsl.) Servít; Protobagliettoa erumpens (Servít) Servít; Protobagliettoa parmigerella (Zahlbr.) Servít; Verrucaria harrimannii sensu Anzi; Verrucaria pinguis J. Steiner; Verrucaria sphinctrinella var. italica Servít; Verrucaria sphinctrinella Zschacke
Distribution: N - VG (Cucchi & al. 2009, 2009b, Yuzon & al. 2014), Frl (Cucchi & al. 2009), Ven (Halda 2003), TAA (Halda 2003), Emil (Fariselli & al. 2020), Lig (Valcuvia & al. 2000, Halda 2003, Giordani & al. 2016). C - Tosc (Benesperi 2006), Marc (Nimis & Tretiach 1999), Umb (Nimis & Tretiach 1999, Ravera & al. 2006), Laz (Nimis & Tretiach 2004), Abr (Nimis & Tretiach 1999, Gheza & al. 2021), Mol (Nimis & Tretiach 1999, Caporale & al. 2008), Sar. S - Camp (Halda 2003, Aprile & al. 2003, 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Pugl (Nimis & Tretiach 1999), Bas, Cal (Puntillo 1996), Si (Nimis & al. 1994, 1996b, Ottonello & Salone 1994, Ottonello & al. 1994, Ottonello 1996, Grillo & Caniglia 2004, Caniglia & Grillo 2005, 2006).
Description: Thallus crustose, fully endosubstratic, usually covering large surfaces, grey, dark grey-green or blue-green, sometimes dark lead-grey, often slightly glossy, uncracked. Cortex (lithocortex) densely prosoplectenchymatous, of conglutinated hyphae intermingled with microcrystals, with a green pigment; algal layer discontinuous, photobiont cells in clusters; medulla prosoplectenchymatous, sometimes with oil cells (macrospheroids) in the lower part. Perithecia black, completely immersed in the rock and leaving deep pits when they fall off. Involucrellum black, flat to slightly convex, much narrower than the body of the perithecium (0.15-0.22 μm diam.), spreading sideways but scarcely downwards, in surface view usually with 3-6 fine cracks radiating from ostiole; exciple 0.2-0.3 mm across, the wall colourless to pale brown; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue; hamathecium of periphyses in the ostiolar canal, and short periphysoids in the upper half of the perithecial cavity; paraphyses dissolving early. Asci 8-spored, two-layered, fissitunicate, with a thin tholus reacting I-, Verrucaria-type. Ascospores 1-celled, hyaline, ellipsoid, often poorly developed, 14-21(-25) x 6-8(-12) μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a mild-temperate lichen found on compact limestone and dolomite in sheltered situations (e.g. in forests), with optimum in submediterranean areas; in the Mediterranean belt it is confined to humid-shaded situations, reaching near treeline in the mountains of the South; forms from southern Italy with a dark grey thallus are common, and deserve further study.
Growth form: Crustose endolithic
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: rare
Montane belt: very common
Submediterranean belt: common
Padanian area: very rare
Humid submediterranean belt: common
Humid mediterranean belt: rather common
Dry mediterranean belt: very rare

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model
Herbarium samples


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (32393)
2001/12/09



P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38166)
2008.02.23



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Elena Pittao - CC BY-SA 4.0
Herbarium: TSB 17253



Elena Pittao - CC BY-SA 4.0
Herbarium: TSB 17253